Centrifugal compressor

Abstract

The centrifugal compressor comprises a driving motor and an impeller disk, the impeller disk comprises a connecting handle, a mounting sleeve is inserted into a port of the connecting handle, and a substrate mounting seat is in threaded connection with the end, located in the connecting handle, of the mounting sleeve; a locking mechanism is arranged in the substrate mounting seat, and the locking mechanism comprises a plurality of hook tongues which are rotationally arranged on the inner wall of the substrate mounting seat in a circumferential array; a handle part is fixedly installed at the output end of the driving motor, a rectangular boring groove is formed in the outer side wall of the handle part, and a limiting rod connected with the coupler knuckle in a hanging mode is fixedly installed in the rectangular boring groove. When the handle part is inserted into the mounting sleeve, due to the fact that the coupler knuckle is rotationally mounted, when the coupler knuckle is pulled outwards, the coupler knuckle can be hung on the limiting rod to complete locking and limiting, and compared with a traditional mounting mode, the locking and limiting device is simpler and quicker.

Description

Technical Field

[0001] The utility model relates to a centrifugal compressor, and specifically to a centrifugal compressor. Background Art

[0002] A centrifugal compressor refers to a mechanical device that uses centrifugal force to compress gases or vapors. In such a machine, the gas or vapor is injected into a rotating centrifuge, and the centrifugal force generated by the high-speed rotating blades compresses the gas or vapor, and then the compressed gas or vapor is sent to the downstream system for use. It is commonly used in air conditioning systems, refrigeration equipment, and applications that require gas compression in industrial processes.

[0003] Reference Publication (Announcement) Number: CN117432637A, Publication (Announcement) Date: January 23, 2024. A disclosed centrifugal compressor includes an air inlet, a flow channel, a first-stage impeller, a second-stage impeller, a return guide vane base, and an economizer injection channel. The flow channel has a first diffuser section, a first turning section, a return section, a second turning section, a second diffuser section, and a volute flow channel. The volute flow channel is connected to the second diffuser section. The first-stage impeller is disposed between the air inlet and the first diffuser section. The second-stage impeller is disposed between the second turning section and the second diffuser section. The return guide vane base has a plurality of return wings located in the return section and a plurality of injection holes communicating with the return section. Each of the return wings has a first wing portion, a second wing portion, and a slit located between the first wing portion and the second wing portion. The plurality of injection holes respectively fall within the plurality of slits. The economizer injection channel communicates with the plurality of injection holes.

[0004] And Publication (Announcement) Number: CN113202790A, Publication (Announcement) Date: August 3, 2021. A disclosed centrifugal compressor includes a base, a centrifugal air compressor, and an oil station. The centrifugal air compressor is disposed above the base, and the oil station is disposed above the base and on one side of the centrifugal air compressor. A high-level oil tank is provided above the centrifugal air compressor, and a gas storage tank is provided above the high-level oil tank. A oil driving mechanism is provided inside the high-level oil tank. In this utility model, by adding a high-level oil tank above the centrifugal air compressor, the continuous oil supply capacity of the entire lubricating oil system can still be ensured when the oil station is not working, realizing that after the main and auxiliary oil pumps are powered off, the entire lubricating oil system continues to lubricate and cool the centrifugal air compressor and the drive motor, solving the problems of having to replace all the lubricating oil in the oil station and overhauling the centrifugal compressor after power failure and restart.

[0005] In the prior art including the above two patents, the connection between the impeller disk and the output end of the drive motor in the prior art centrifugal compressor is fixed by screws. How to optimize this connection structure is expected to be well solved. Summary of the Invention

[0006] The purpose of this utility model is to provide a centrifugal compressor to solve the above problems.

[0007] To achieve the above purpose, the present utility model provides the following technical solution: a centrifugal compressor, including a driving motor and a wave wheel disc. The wave wheel disc includes a connecting handle, and an installation sleeve is inserted into the port of the connecting handle. One end of the installation sleeve located inside the connecting handle is threadedly connected with a substrate mounting seat;

[0008] A locking mechanism is arranged in the substrate mounting seat. The locking mechanism includes a plurality of hook tongues rotatably arranged in a circumferential array on the inner wall of the substrate mounting seat;

[0009] A handle part is fixedly installed at the output end of the driving motor. A rectangular boring groove is formed on the outer side wall of the handle part, and a limiting rod hooked with the hook tongue is fixedly installed in the rectangular boring groove.

[0010] Preferably, fixing screws threadedly connected with the connecting handle are penetrated through the port section of the installation sleeve. The number of the fixing screws is not less than three, and the top of the fixing screws is flush with the port section of the installation sleeve.

[0011] Preferably, a first hoop mechanism and a second hoop mechanism are arranged inside the connecting handle in sequence from the port to the inside. Among them:

[0012] Both hoop mechanisms include a moving ring, a fixed ring, and a connecting belt fixedly installed between the two moving rings and fixed rings. When the moving ring rotates relative to the fixed ring, the connecting belt is screwed on the outer wall of the output end of the driving motor.

[0013] Preferably, the thread directions of the connecting belts on the first hoop mechanism and the second hoop mechanism are opposite in the default state;

[0014] The connecting belt is a rigid elastic rubber part, and a suede non-woven cushion is arranged on the side surface in contact with the output end of the driving motor.

[0015] Preferably, a transmission rod is rotatably arranged inside the connecting handle, and a first circular gear meshing with the tooth ring on the outer wall of the moving ring is fixedly installed on the transmission rod;

[0016] It further includes a second circular gear and a third circular gear rotatably arranged on the connecting handle and the substrate mounting seat and capable of meshing with each other. A fourth circular gear meshing with the second circular gear is fixedly installed on the transmission rod.

[0017] Preferably, a double-sided tooth disc is rotatably installed on the inner wall of the substrate mounting seat. The outer teeth of the double-sided tooth disc are meshed with the third circular gear, and the inner teeth are meshed with a first transmission gear rotatably arranged inside the substrate mounting seat;

[0018] A second transmission gear meshing with the first transmission gear is rotatably installed in the center of the substrate mounting seat;

[0019] A limiting plate is arranged in the substrate mounting seat, and a butterfly rod is slidably arranged on the limiting plate. The butterfly rod is in threaded fit with a boring hole formed in the end face of the second transmission gear;

[0020] The limiting plate is in abutting fit with the handle part.

[0021] Preferably, a blocking spring for pushing the receiving part fixedly installed on the end face of the butterfly rod away from the limiting plate is fixedly arranged on the limiting plate.

[0022] Preferably, it further includes a V-shaped rod member. The V-shaped rod member is rotatably arranged on the limiting plate. A ball rotatably arranged on its first end is in sliding fit with the receiving part, and the second end is rotatably connected to the extending end of the hook tongue.

[0023] Preferably, with the rotation point as the axis, the length of the hook tongue is less than the length of the extending end.

[0024] In the above technical solution, a centrifugal compressor provided by the present utility has the following beneficial effects: When the handle part is inserted into the installation sleeve, since the hook tongue is rotatably installed, when pulled outwards, the hook tongue will hang on the limiting rod to complete locking and limiting. Compared with the traditional installation method, it is simpler and faster. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility;

[0027] Figure 2 It is an exploded structure schematic diagram provided by an embodiment of the present utility;

[0028] Figure 3 It is a schematic diagram of the sectional structure of the connecting handle and the handle part provided by an embodiment of the present utility;

[0029] Figure 4 It is provided by an embodiment of the present utility Figure 3 The first partial enlarged structure schematic diagram of;

[0030] Figure 5 It is provided by an embodiment of the present utility Figure 3Schematic diagram of the second partial enlarged structure;

[0031] Figure 6 Schematic diagram of the hook tongue and the receiving part provided by this practical embodiment.

[0032] Explanation of reference numerals:

[0033] 1. Driving motor; 11. Handle part; 111. Rectangular boring groove; 112. Limit rod; 2. Wavy wheel disc; 21. Connecting handle; 22. Mounting sleeve; 221. Fixing screw; 23. Substrate mounting seat; 231. First transmission gear; 232. Second transmission gear; 2321. Boring hole; 3. Locking mechanism; 31. Hook tongue; 4. First hoop mechanism; 5. Second hoop mechanism; 60. Transmission rod; 61. First circular gear; 62. Second circular gear; 63. Third circular gear; 64. Fourth circular gear; 7. Double-sided tooth disc; 8. Limit plate; 81. Butterfly rod; 82. Receiving part; 83. Resistance spring; 9. V-shaped rod member; 91. Ball; 100. Moving ring; 1001. Tooth ring; 101. Fixed ring; 102. Connecting belt; 103. Flannelette non-woven pad. Detailed implementation manners

[0034] In order to enable those skilled in the art to better understand the technical solutions of this utility model, the following will further introduce this utility model in detail in conjunction with the accompanying drawings.

[0035] As Figures 1-6 shown, a centrifugal compressor includes a driving motor 1 and a wavy wheel disc 2. The wavy wheel disc 2 includes a connecting handle 21. A mounting sleeve 22 is inserted into the port of the connecting handle 21. A substrate mounting seat 23 is threadedly connected to the end of the mounting sleeve 22 located inside the connecting handle 21;

[0036] A locking mechanism 3 is arranged in the substrate mounting seat 23. The locking mechanism 3 includes a plurality of hook tongues 31 rotatably arranged in a circumferential array on the inner wall of the substrate mounting seat 23;

[0037] The output end of the driving motor 1 is fixedly installed with a handle part 11. A rectangular boring groove 111 is formed on the outer side wall of the handle part 11, and a limit rod 112 connected to the hook tongue 31 is fixedly installed in the rectangular boring groove 111.

[0038] In the above technology, when the handle part 11 is inserted into the mounting sleeve 22, since the hook tongue 31 is rotatably installed, when pulled outwards, the hook tongue 31 will hang on the limit rod 112 to complete locking and limiting. Compared with the traditional installation method, it is simpler and faster.

[0039] As an embodiment provided by this utility model, fixing screws 221 threadedly connected to the connecting handle 21 are inserted through the port section of the mounting sleeve 22. The number of the fixing screws 221 is not less than three, and the top of the fixing screws 221 is flush with the port section of the mounting sleeve 22.

[0040] Thus, the installation of the locking mechanism 3 is realized. By removing the fixing screw 221, the mounting sleeve 22 can be taken off, and then by rotating the wire removal, the substrate mounting seat 23 and the mounting sleeve 22 can be separated.

[0041] As another embodiment provided by the present utility model, the inside of the connecting handle 21 is provided with a first hoop mechanism 4 and a second hoop mechanism 5 arranged in sequence from the port to the inside, where:

[0042] Both hoop mechanisms include a moving ring 100, a fixed ring 101, and a connecting belt 102 fixedly installed between the two moving rings 100 and fixed rings 101. When the moving ring 100 rotates relative to the fixed ring 101, the connecting belt 102 is screwed onto the outer wall of the output end of the driving motor 1.

[0043] It should be noted that the connecting belts 102 on the first hoop mechanism 4 and the second hoop mechanism 5 in the default state have opposite thread directions in the default state; and the connecting belt 102 is a rigid elastic rubber part, and a velvet non-woven pad 103 is provided on the side surface in contact with the output end of the driving motor 1.

[0044] In the embodiment, when the rotation directions of the first hoop mechanism 4 and the second hoop mechanism 5 are the same, because the inclination directions of the connecting belts 102 are different, when the moving ring 100 rotates relative to the fixed ring 101, the connecting belt 102 is screwed onto the outer wall of the output end of the driving motor 1.

[0045] As another embodiment provided by the present utility model, a transmission rod 60 is rotatably arranged inside the connecting handle 21, and a first circular gear 61 meshing with a toothed ring 1001 on the outer wall of the moving ring 100 is fixedly installed on the transmission rod 60;

[0046] It further includes a second circular gear 62 and a third circular gear 63 which are rotatably arranged on the connecting handle 21 and the substrate mounting seat 23 and can mesh with each other, and a fourth circular gear 64 meshing with the second circular gear 62 is fixedly installed on the transmission rod 60.

[0047] Furthermore, a double-sided tooth disk 7 is rotatably installed on the inner wall of the substrate mounting seat 23. The outer teeth of the double-sided tooth disk 7 mesh with the third circular gear 63, and the inner teeth mesh with a first transmission gear 231 rotatably arranged inside the substrate mounting seat 23;

[0048] A second transmission gear 232 meshing with the first transmission gear 231 is rotatably installed in the center of the substrate mounting seat 23;

[0049] A limiting plate 8 is arranged inside the substrate mounting seat 23. A butterfly rod 81 is slidably arranged on the limiting plate 8, and the butterfly rod 81 is in threaded cooperation with a boring hole 2321 opened on the end face of the second transmission gear 232;

[0050] The limiting plate 8 and the handle portion 11 are in a pushing and fitting relationship.

[0051] Furthermore, a thrust spring 83 for keeping the receiving portion 82 away from the limiting plate 8 is fixedly arranged on the limiting plate 8, and the end face of the push butterfly rod 81 is fixedly installed with the receiving portion 82.

[0052] Specifically, in the embodiment, when the receiving portion 82 moves downward, it is threadedly engaged with the boring hole 2321 of the butterfly rod 81, and the second transmission gear 232 rotates. Through the transmission of various components, the moving ring 100 is driven to rotate, and the connecting belt 102 is screwed onto the outer wall of the output end of the driving motor 1.

[0053] As another embodiment provided by the present utility model, this embodiment further includes a V-shaped rod member 9. The V-shaped rod member 9 is rotatably arranged on the limiting plate 8. A ball 91 rotatably arranged at its first end is in sliding fit with the receiving portion 82, and the second end is rotatably connected to the extended end of the hook tongue 31.

[0054] Secondly, with the rotation point as the axis, the length of the hook tongue 31 is less than the length of the extended end.

[0055] Specifically, when the receiving portion 82 moves downward, it pushes the end of the V-shaped rod member 9 with the ball 91 away from the center of the circle, thereby driving the hook tongue 31 closer to the center of the circle, and then hooking on the limiting rod 112.

[0056] Working principle: S01. The handle portion 11 extends into the installation sleeve 22 and pushes the receiving portion 82 to move toward the side of the wave wheel disc 2;

[0057] S02. When the receiving portion 82 moves downward, it is threadedly engaged with the boring hole 2321 of the butterfly rod 81, and the second transmission gear 232 rotates. Through the transmission of various components, the moving ring 100 is driven to rotate, and the connecting belt 102 is screwed onto the outer wall of the output end of the driving motor 1;

[0058] S03. When the above step S02 is executed, the receiving portion 82 moves to push the end of the V-shaped rod member 9 with the ball 91 away from the center of the circle, thereby driving the hook tongue 31 closer to the center of the circle, and then hooking on the limiting rod 112.

[0059] Only some exemplary embodiments of the present utility model are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A centrifugal compressor, comprising a drive motor (1) and a wave wheel disc (2), characterized in that, The wave wheel disc (2) includes a connecting handle (21), and an installation sleeve (22) is inserted into the port of the connecting handle (21). A substrate mounting seat (23) is threadedly connected to the end of the installation sleeve (22) located inside the connecting handle (21). A locking mechanism (3) is arranged in the substrate mounting seat (23). The locking mechanism (3) includes a plurality of hook tongues (31) rotatably arranged in a circumferential array on the inner wall of the substrate mounting seat (23). A handle part (11) is fixedly installed at the output end of the drive motor (1). A rectangular boring groove (111) is formed on the outer side wall of the handle part (11), and a limiting rod (112) hooked to the hook tongue (31) is fixedly installed in the rectangular boring groove (111).

2. The centrifugal compressor according to claim 1, wherein Fixing screws (221) threadedly connected to the connecting handle (21) are inserted through the port cross-section of the installation sleeve (22). The number of the fixing screws (221) is not less than three, and the tops thereof are flush with the port cross-section of the installation sleeve (22).

3. A centrifugal compressor according to claim 1, wherein, A first hoop mechanism (4) and a second hoop mechanism (5) are arranged inside the connecting handle (21) in sequence from the port to the inside, where: Both hoop mechanisms include a moving ring (100), a fixed ring (101), and a connecting belt (102) fixedly installed between the two moving rings (100) and fixed rings (101). When the moving ring (100) rotates relative to the fixed ring (101), the connecting belt (102) is screwed onto the outer wall of the output end of the drive motor (1).

4. A centrifugal compressor according to claim 3, wherein, The connecting belts (102) on the first hoop mechanism (4) and the connecting belts (102) on the second hoop mechanism (5) have opposite thread directions in the default state. The second hoop mechanism (5) includes a connecting belt (102). The connecting belt (102) is a rigid elastic rubber part, and a flannelette non-woven mat (103) is arranged on the side surface in contact with the output end of the drive motor (1).

5. A centrifugal compressor according to claim 3, wherein, A transmission rod (60) is rotatably arranged in the connecting handle (21). A first circular gear (61) meshing with a toothed ring (1001) on the outer wall of the moving ring (100) is fixedly installed on the transmission rod (60). It further includes a second circular gear (62) and a third circular gear (63) rotatably arranged on the connecting handle (21) and the substrate mounting seat (23) and capable of meshing with each other. A fourth circular gear (64) meshing with the second circular gear (62) is fixedly installed on the transmission rod (60).

6. A centrifugal compressor according to claim 5, characterized in that, A double-sided toothed disc (7) is rotatably installed on the inner wall of the substrate mounting seat (23). The outer teeth of the double-sided toothed disc (7) mesh with the third circular gear (63), and the inner teeth thereof mesh with a first transmission gear (231) rotatably arranged in the substrate mounting seat (23). A second transmission gear (232) meshing with the first transmission gear (231) is rotatably installed in the middle of the substrate mounting seat (23). A limiting plate (8) is arranged inside the substrate mounting seat (23), and a butterfly rod (81) is slidably arranged on the limiting plate (8). The butterfly rod (81) is in threaded cooperation with a boring hole (2321) formed on the end face of the second transmission gear (232). The limiting plate (8) is in abutting cooperation with the handle portion (11).

7. A centrifugal compressor according to claim 6, characterized in that, A resistance spring (83) for pushing away from the limiting plate (8) a receiving portion (82) fixedly installed on the end face of the butterfly rod (81) is fixedly arranged on the limiting plate (8).

8. A centrifugal compressor according to claim 7, characterized in that, It further includes a V-shaped rod member (9). The V-shaped rod member (9) is rotatably arranged on the limiting plate (8). A ball (91) rotatably arranged on its first end is in sliding cooperation with the receiving portion (82), and the second end is rotatably connected to an extended end of the hook tongue (31).

9. The centrifugal compressor according to claim 8, wherein, Taking the rotation point as the axis, the length of the hook tongue (31) is less than the length of the extended end.

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